baber/WOPTO huggingface dataset:
Patent CN-201369209-Y (CN)
Title: 一种硬线单绕组共模电感卧式装置
Inventor: KAIYUAN LI
IPC: H01F17/06
Filed: 2009-03-25
Granted: 2009-12-23
Abstract: 本实用新型涉及一种硬线单绕组共模电感卧式装置，包括磁环和单芯硬线绕组，所述磁环有一块或多块；单芯硬线绕组共有两组，采用两个铜条分别穿过磁环组成，在两个铜条之间安装有绝缘板。装有两组单芯硬线绕组及绝缘板的磁环安装在印制电路板上，磁环圆心的轴心线与印制电路板的平面平行。两个铜条均为L形，且两个铜条为同一形状构件。两个铜条分别在不同的高度和方向穿过磁环，并与印制电路板的支承柱固定连接。磁环缝隙采用绝缘胶填充。本实用新型的优点是，结构简单、设计合理，性能可靠，可有效地通过大电流，且安装方便。
Patent CN-201390570-Y (CN)
Inventor: WEIMING SHAN
IPC: B65H54/04
Filed: 2009-01-13
Granted: 2010-01-27
Abstract: 本实用新型是一种自动络筒机，特别涉及一种用在自动络筒机中的倒筒装置。一种自动络筒机倒筒装置，包括筒子，包括竖杆、横杆、导丝钩、连接体和固定件组成，所述横杆的一端设有导丝钩，所述导丝钩的一侧摆放有筒子，所述的横杆和竖杆由连接体相互连接，所述的竖杆的底端由固定件固定连接在络筒机的车脚支架角铁上。提供一种结构简单，安装方便，倒筒速度正常，筒子卷绕密度高，纱线质量高，减少用工用电和设备的投资，为企业带来可观的经济效益。
Patent CN-201353775-Y (CN)
Inventor: ZHUYING HU
IPC: B26B5/00
Filed: 2009-02-16
Granted: 2009-12-02
Abstract: 本实用新型涉及一种轻便菜刀，其特征在于；所述的刀体上设有镶嵌菜刀刀片的凹槽，在刀体的凹槽侧面和菜刀刀片上设有相互对应的定位孔和定位扣；所述的刀体的刀背前端设有砍骨刀口，所述的刀体的刀背中部设有刮齿；所述的菜刀刀片上喷一层不粘沙；所述的刀柄上设有凸块，所述的刀柄尾部端设有空腔，在空腔内设有刨皮刀。本实用新型集各种厨房用具于一身、且结构简单、制造成本低，适于厨房作业使用。
Patent CN-201380496-Y (CN)
Inventor: LINGFENG LI
IPC: B25J9/08
Filed: 2009-03-19
Granted: 2010-01-13
Abstract: 本实用新型的三转动一移动四自由度并联机构，包括一个四边形动平台、一个四边形静平台以及连接动平台和静平台对应边的四条支链，其中三条支链为结构相同的非约束支链，一条支链为约束支链，每条非约束支链由依次连接的第一虎克铰、具有两根滑杆的第一移动副和球铰组成和球铰组成，各条非约束支链上的第一虎克铰分别与静平台的一条边相连，球铰分别与动平台的一条边相连，约束支链由依次连接的旋转副、具有两根滑杆的第二移动副和第二虎克铰组成，约束支链上的旋转副与静平台的第四条边相连，第二虎克铰与动平台的第四条边相连，动平台的边长与静平台的边长不等。该并联机构不仅承载能力强，而且不具有奇异位形，在精密传感器，医疗手术等领域有很好的应用前景。
Patent CN-201414497-Y (CN)
Inventor: WEINING YAO
IPC: A44C11/00
Filed: 2009-05-11
Granted: 2010-03-03
Abstract: 一种香水吊坠，包括一坠体，其中：在所述坠体内装设有一香水瓶，所述香水瓶的压缩喷头从所述坠体上面伸出；在所述坠体上还设有一弧形挂扣，所述弧形挂扣的一端可伸缩并装设在所述坠体上，所述弧形挂扣的另一端的端面位于所述香水瓶压缩喷头的正上方。本实用新型提供的吊坠既美观又实用。吊坠可以随时喷出香水补足香味，顾客还可以根据自己的喜好更换不同香味的香水，而且可以循环使用。
Patent MD-153-Z (MD)
Title: Process for treating chick pea seeds with reduced viability
Inventor: CORLĂTEANU Liudmila
IPC: A01C1/06
Filed: 2009-07-01
Abstract: The invention relates to agriculture and may be applied in phytotechny for treating chick pea seeds after long-term storage thereof.The process for treating chick pea seeds with reduced viability includes their presowing treatment during 6 hours with 0.0001...0.1% aqueous solution of tomatoside.The result consists in increasing the chick pea seed viability after long-term storage thereof.
Patent MD-585-Z (MD)
Title: Method for quantitative determination of flavonoids in egetable raw material
Inventor: VALICA VLADIMIR
IPC: C07D311/32
Filed: 2012-04-13
Abstract: The invention relates to the pharmaceutical field, in particular to a method for quantitative determination of flavonoids in vegetable raw material.According to the claimed method, it is carried out the extraction of vegetable raw material with 70…75% ethanol, treatment with aluminum chloride, photometric determination of the optical density of the extract and calculation of the amount of flavonoids, and prior to ethanol extraction the raw material is extracted with chloroform, then the chloroform is decanted, and the solid phase is dried, at the same time the optical density of the extract is determined at 404 nm and the thickness of the absorbed layer of 0.1 cm, and the amount of flavonoids is expressed through the amount of quercitin.
Patent PE-20120890-Z (PE)
Title: Conector para tuberia que contiene un inserto de plastico
Inventor: SANTOS BURGOA MARQUEZ EDUARDO
IPC: F16L47/16
Filed: 2010-09-30
Abstract: CONSTITUIDO POR UN CUERPO DEL CONECTOR Y UN INSERTO MACHO ROSCADO, EN DONDE EL INSERTO Y EL CUERPO ESTAN FORMADO DE DIFERENTES MATERIALES PLASTICOS. EL MATERIAL QUE FORMA EL INSERTO ES UN PLASTICO CON ALTA RESISTENCIA MECANICA Y EL OTRO MATERIAL QUE FORMA EL CUERPO ES UNA RESINA TERMOPLASTICA, EL INSERTO TIENE UNA PORCION FRONTAL CON UN ROSCADO EXTERNO, Y UNA PORCION POSTERIOR QUE SE ENCUENTRA ALOJADA EN EL CUERPO DEL CONECTOR, EN ESTRECHO ACOPLAMIENTO CON EL MISMO MEDIANTE UN SISTEMA DE ANCLAJE QUE CONSISTE EN UNA O MAS CRESTASA CIRCULARES O POLIGONALES FORMADAS EN LA CARA EXTERNA DE LA PORCION POSTERIOR DEL INSERTO, LA(S) CRESTA(S) RODEAN CIRCUNFERENCIALMENTE A LA PARED CILINDRICA DEL INSERTO Y LA SEPARACION ENTRE LAS CRESTAS DA LUGAR A UNA O MAS RANURAS O SURCOS CIRCULARES DE INSERCION
Patent PE-20191527-Z (PE)
Title: Sistemas y metodos de estabilidad de carga suspendida
Inventor: SIKORA DEREK
IPC: B66C23/58
Filed: 2019-01-15
Abstract: Sistemas y metodos de estabilidad de carga para estabilizar movimientos de balanceo de cargas suspendidas. Los sistemas de estabilidad de carga incluyen un dispositivo totalmente automatizado, autoalimentado, que usa propulsion para contrarrestar y controlar movimiento lateral y rotacional de una carga externa. El dispositivo es una instalacion temporal en la carga, cable, o pluma, y es independiente de la plataforma de la cual se suspende.
Patent ES-488534-A0 (ES)
IPC: A01G1/04
Filed: 1980-02-13
Abstract: A process for the production of vesicular-arbuscular (VA) mycorrhizal fungi comprises growing a VA mycorrhizal fungus on plant roots in nutrient film culture. The resulting mycorrhizal fungus infected plant roots are of value in producing a mycorrhizal inoculum, especially for incorporation into a plant growth medium to enhance the uptake of nutrient by plants grown therein.
Patent ES-494498-A0 (ES)
IPC: B01J49/53
Filed: 1980-08-26
Abstract: A method for simple and very precise regeneration of ion exchanger resins with solutions of chelating agents, such as ethylenediaminetetraacetic acid (EDTA), nitrilotriacetic acid (NTA), diaminocyclohexanetetraacetate (DcyTE), or diethylenetriaminepentaacetate (DTPE). The method includes utilization of chelating agents as well as their salts.
Patent ES-495536-A0 (ES)
IPC: G03F7/12
Filed: 1980-10-01
Abstract: Flat printing screens can be coated on one or both sides by the method and apparatus. A liquid is applied to a screen by one or two squeegees secured to carriages moved up and down on rubber sprocket belts driven by a motor. The speed of application can be adjusted according to the desired thickness of the coating and the viscosity of the liquid. The squeegees are mutually offset somewhat in height to reliably prevent the liquid from running out when the squeegees are not in motion. Application takes place regularly and reproducibly even in the case of a thick coating. The drive by means of rubber sprocket belts and a counterweight ensure vibration-free movement of the squeegees along the screen.
Patent ES-509862-A0 (ES)
IPC: G03G15/00
Filed: 1982-02-24
Abstract: The photocopier uses a development process employing a magnetic brush formed on a rotating sleeve (102) of non-magnetic material in which a system of permanent magnets (108) rotates. The outer surface of the sleeve is subjected to a sandblasting process after grinding in order to create a very uniform finely roughened surface in order to make the thickness of the toner layer forming the magnetic brush constant. The photocopier also employs a toner fixing system operating cold and under pressure by means of a pair of rollers (56, 58) of different diameter rotating at the same angular speed in order to create slippage of the upper roller relative to the lower roller for the purpose of obtaining perfectly flat copies. The coppier also contains a single circuit board (80) for the low voltage and high voltage supply.
Patent ES-510533-A0 (ES)
IPC: B41N3/00
Filed: 1982-03-17
Abstract: The invention relates to a process for the burning-in of positive-working, light-sensitive layers, containing diazo compounds, during the preparation of offset printing forms, by heating the printing plate. In this process, the light-sensitive layer is treated, after exposure and development, with electromagnetic radiation having an infrared fraction, a fraction in the visible region, and an ultraviolet fraction.
Patent ES-524598-A0 (ES)
IPC: B42D3/00
Filed: 1983-07-29
Abstract: 1. Use of a method for the coating of the surfaces of carboard cut blanks with plastic, in which an extruded plastic foil in viscous state is applied directly on both sides onto individual cardboard cut blanks, characterized in that for the manufacture of files or ring binders, small marginal projections of the foils are produced, which are laid against the side- and front faces of the cut blank.
Patent ES-525127-A0 (ES)
IPC: H05B3/06
Filed: 1983-08-24
Abstract: 1. Electric hotplate with a hotplate body (12) and a lower cover (24), as well as an insulating piece (51) projecting from the cover for the passage or the electric hotplate connections (58, 81) through said cover, thermally stably insulated, flexible leads (58), which are sufficiently long for arranging the connecting piece (75) thereof outside the area of the electric hotplate (11) lead to a common, freely movably arranged connecting piece (75) and the ends (90) of the flexible leads (58) are constructed for insertion in a connection socket (91, 105), characterized in that the connecting piece (75) has retaining means keeping the ends (90) of flexible leads (58) aligned parallel to one another in the manner of connecting pins or lugs and that the ends (90) project through the connecting piece (75) and out of the latter on the connection side thereof.
Patent ES-534534-A0 (ES)
IPC: B01J31/28
Filed: 1984-07-20
Abstract: A finely divided nickel boride hydrogenation catalyst which is stabilised with an organic linear polymer dispersed in a fatty substance like a triglyceride oil or a fatty amide is provided. The catalyst is stable upon storage and has a good selectivity. This catalyst yields excellent results in hydrogenation processes.
Patent ES-538576-A0 (ES)
IPC: C08K5/18
Filed: 1984-12-13
Abstract: Compounds of the formula   <IMAGE>   are suitable as curing accelerators which can be incorporated into ethylenically unsaturated, cold-curable resins.
Patent ES-538947-A0 (ES)
IPC: C08F297/08
Filed: 1984-12-21
Abstract: Present invention pertains to a process for preparing an impact-resistant ethylene-propylene block copolymer, characterized in that in a first polymerization step a propylene prepolymer is prepared consisting for at least 98% (wt) of propylene groups having a melt index measured according to ASTM-D-1238 at 503K and 21.6 N of 0.1-100 dg/min, in that in the presence of the propylene prepolymer produced in the first polymerization step ethylene and propylene are polymerized in a second polymerization step in such a manner that a starting ethylene-propylene block copolymer is formed at least consisting of an at least almost completely homopolymeric propylene part and a copolymeric ethylene-propylene part, the weight ratio between the at least almost completely homopolymeric propylene part and the copolymeric ethylene-propylene part being between 3:2 and 9:1, containing a total amount of 10-25% (wt) ethylene groups and having a melt index measured according to ASTM-D-1238 at 503K and 21.6 N which is <1>/100 to <1>/2 part of the melt index measured according to ASTM-D-1238 at 503K and 21.6 N of the propylene prepolymer and in that this starting ethylene-propylene block copolymer is subsequently subjected to a kneading treatment consisting of one or more kneading operations, which kneading treatment takes place in the presence of free radicals at a temperature of a least 450K.
Patent ES-545365-A0 (ES)
IPC: C07C217/04
Filed: 1985-07-18
Abstract: A compound of formula (A): <CHEM>  wherein X<1> represents a 2-hydroxy-3-aryloxypropyl radical unsubstituted or substituted in the aryl moiety or a 2-hydroxy2-benzofuranylethyl group; and X<2> represents a 2-hydroxy-3-aryloxypropyl or 2-hydroxy-2-arylethyl radical unsubstituted or substituted in the aryl moiety or a 2-hydroxy-2-benzofuranylethyl group; and X<3> represents a 2- or 3-arylpropyl or 2-aryloxyethyl radical substituted in the aryl moiety and unsubstituted or methyl-substituted in the aryl chain; or a compound of formula (A) wherein one of the -CHOH - moieties in any one of the 2-hydroxyethyl or 2-hydroxypropyl moieties is present as a carbonyl group and/or a compound of formula (A) wherein up to two of the aforementioned -CHOH- moieties may be present in the form of a pharmaceutically acceptable in-vivo hydrolysable ester; or a pharmaceutically acceptable salt thereof; a process for preparing such compounds and pharmaceutical compositions containing them and their use in medicine and agriculture.
Patent ES-552129-A0 (ES)
IPC: F04B23/00
Filed: 1986-02-18
Abstract: A single-acting, gas operated, pump method and apparatus including a pump body having a main chamber divided by a reciprocating piston assembly into a gas driving chamber and a liquid pumping chamber, a spring for biasing the piston assembly into one of its two end positions, a reciprocating control valve controlling the flow of driving gas to and from the gas driving chamber, a snap-acting spring mechanically coupling the control valve to the reciprocating movement of the piston assembly, and a counteracting spring for biasing the control valve toward one of its two positions.
Patent FI-824134-A0 (FI)
Inventor: REUTHER WOLFGANG
IPC: B27K3/50
Filed: 1982-12-01
Abstract: A wood preservative comprises a mixture of A. N-cyclohexyl-N-methoxy-2,5-dimethyl-furan-3-carboxamide and B. tris-(N-cyclohexyl-diazeniumdioxy)-aluminum. A process for treating wood with this mixture is also described.
Patent FI-834723-A0 (FI)
Inventor: SHROMM KURT
IPC: A61K31/505
Filed: 1983-12-22
Abstract: Compounds of the formula   <IMAGE>   wherein (a) R1 is hydrogen, lower alkyl, lower alkoxy or 8-halo; R2 is hydrogen, lower alkyl, lower alkoxy or a fused benzene ring; and R3 and R4, together with each other, are -N=N-NH-; or (b) R1 and R2, together with each other, are -N=N-NH-; R3 is hydrogen, lower alkyl, lower alkoxy, 2-halo, 3-halo or 4-halo; and R4 is hydrogen, lower alkyl, lower alkoxy or a fused benzene ring; and non-toxic, pharmacologically acceptable salts thereof formed with an inorganic or organic base. The compounds as well as their salts are useful as antiallergics.
Patent FI-841216-A0 (FI)
Inventor: LUTZ WALTER
IPC: C08G12/08
Filed: 1984-03-27
Abstract: A light-sensitive, diazonium group-containing polycondensation product is described which comprises (a) an optionally substituted diphenylamine-dianzonium salt I. (b) a compound corresponding to the formula II R4-O-CH2-R5 (II)  wherein R4 is H, alkyl or acyl, and R5 is an optionally substituted aromatic radical, and (c) a compound corresponding to the formula III R6-O-CH2-R8-CH2-O-R7 (III)  wherein R6 and R7 are H, alkyl, or acyl and R8 is the radical of a compound selected from the group consisting of aromatic hydrocarbons, phenols, phenolethers, aromatic thioethers, aromatic heterocyclic compounds, and organic acid amides, with the radicals resulting from compound II being directing linked to the units of the diazonium salt I. In the production of the polycondensation product, I is first condensed with II and then with III. The product is suitable for use as a light-sensitive substance in recording materials, particularly in printing plates, and yields light-hardening products which have an increased oleophilicity.
Patent FI-843801-A0 (FI)
Inventor: PEPPEL JOERG-MICHAEL
IPC: H02H9/04
Filed: 1984-09-27
Abstract: In order to protect converter equipment which includes GTO switching-off thyristors and having d-c inputs and a protective inductance connected in series therewith against short circuit currents, a short circuit path for d-c current flowing from a d-c supply source on the one hand, and on the other hand, an energy storage device, is inserted into the d-c circuit, closed via an auxiliary thyristor, of the converter equipment in such a manner that through the change of the state of storage of the energy storage device, a countervoltage is impressed on the d-c terminals, which leads to the forcible commutation of the switching-off thyristors. The energy storage device advantageously comprises an auxiliary winding of a limiting choke serving as a protective inductance. The fault current, which increases steeply in the event of a short circuit via the protective inductance and the auxiliary thyristor, causes, due to the magnetic coupling, the generation of a counter voltage in the supplemental winding required for forcible commutation of the switching-off thyristors. For monitoring the current and for generating the auxiliary thyristor firing energy, a monitor likewise fed inductively by means of the protective inductance may be provided.
Patent FI-850043-A0 (FI)
Inventor: RADVAN BRONISLAW
IPC: C08J5/04
Filed: 1985-01-04
Abstract: A solid fibre reinforced plastics material sheet comprising 20 to 60% by weight of reinforcing fibres having a high modulus of elasticity (as herein defined), a substantial proportion of the fibres being between 7 and 50 millimetres long and 13 microns or less in diameter, and 40 to 80% by weight of a thermoplastics material.
Patent FI-853540-A0 (FI)
Inventor: BOLIN GOERAN
IPC: B42C7/00
Filed: 1985-09-16
Abstract: Apparatus for gluing together at least two individual sheets of material cut to finished dimensions, and intended to form parts of a folder consisting of a spine and two covers, said apparatus including two reception surfaces (2, 4) situated side by side, each defined by aligning members (6, 8, 10) for aligning the two individual sheets in predetermined positions relative each other, a first conveying means (12) for moving one sheet away from its reception surface (4) to a gluing device (16) for coating at least one sheet with a glue bead, a second conveying means (14) for moving the second sheet away from its reception surface, at least one of the conveying means being adapted for moving one sheet relative the other so that both sheets overlap each other in the area of the glue bead, and a press means (18) for pressing together both sheets in said area.The apparatus also includes locating means (12a, b; 14a, b) which locate the sheets in said positions and are movable relative each other and together with the respective sheet for maintaining the locations of the sheets during movement of the sheets, their gluing together and pressing together.
Patent FI-874220-A0 (FI)
Inventor: ARABIAN SANDRO
IPC: A47K10/28
Filed: 1987-09-25
Abstract: The towel dispenser expediently consists of two towel units, of which, however, each unit is fully operable on its own. In this case, the towel (7) is guided over a delivery cylinder (20) into a feed cylinder (25). When the towel (7) is pulled out to form a towel loop (8), the delivery cylinder (15) is also rotated and likewise the feed cylinder (25) via an envelope pinion (32). Arranged in the feed shaft (30) is a spring power store (36) which is stressed when the towel is pulled out. The length of the towel which can be pulled out is limited by a cam wheel (43) and a latch (44). Since part of the used towel which is wound up by the feed cylinder (25) can be withdrawn, the length of the clean towel to be pulled out can be kept smaller. After a certain period of time, a timer releases the latch (44), by which means the spring power store sets the feed cylinder (25) in rotary motion and the towel loop (8) is wound up. <IMAGE>
Patent FI-883593-A0 (FI)
Inventor: HEIN JOSEF THEO
IPC: B44C7/02
Filed: 1988-08-01
Abstract: PCT No. PCT/EP87/00772 Sec. 371 Date Aug. 19, 1988 Sec. 102(e) Date Aug. 19, 1988 PCT Filed Dec. 11, 1987 PCT Pub. No. WO88/04617 PCT Pub. Date Jun. 30, 1988.Heavy wall, ceiling and floor coverings with closed surfaces can be pulled or pushed off relatively easily if the material connecting the coating with the substrate in an adhesive joint can at least be loosened with the aid of a stripping fluid. In accordance with the invention, a stripping fluid is pressed in an air-free, pulse-like way with the aid of a needle nozzle (1) through the coating with a high pressure into the adhesive joint (FIG. 1).
Patent FI-902851-A0 (FI)
Inventor: SHUTSKE GREGORY MICHAEL
IPC: A61K31/47
Filed: 1990-06-07
Abstract: There are disclosed compounds having the formula <CHEM>  where X is hydrogen, loweralkyl, loweralkoxy, halogen or trifluoromethyl, and R when present is hydrogen, loweralkyl, allyl, arylloweralkyl,   - @ - Cl or   - @ - NH - R, wherein R1 is loweralkyl, <CHEM> n being 2, 3 or 4 and R2 and R3 being independently loweralkyl, or the group <CHEM>  taken as a whole constituting <CHEM> which compounds are useful as analgesic agents and also for the treatment of various memory dysfunctions characterized by a decreased cholinergic function such as Alzheimer's disease.
Patent FI-903186-A0 (FI)
Inventor: DOUGHTY DAVID TEMPLETON
IPC: B01J20/20
Filed: 1990-06-25
Abstract: An adsorbent for removal of toxic materials in respiration and collective filter applications, which consist of a chromium-free activated carbon having impregnated therein a total amount of from 6 to 16% copper and zinc, and optionally impregnated with 0,0 to 10 % silver and 0,0 to 6 % triethylenediamine.
Patent FI-910358-A0 (FI)
Inventor: TUOMPO HELENA MARJATTA
IPC: G01N33/52
Filed: 1991-01-24
Abstract: The invention relates to a method for the detection of miccroorganisms in liquid samples and to an apparatus using this method. In particular, this method relates to a detection of microorganisms using a dehydrogenase-mediated colour formation of selected microorganisms.
Patent FI-931064-A0 (FI)
Inventor: HENNINGER CHRISTOPH
IPC: D21H23/36
Filed: 1993-03-10
Abstract: The invention relates to an apparatus for the coating of running paper or cardboard webs, having an application chamber (9) which is pressurised to a gauge pressure of at least 0.01 bar relative to the ambient pressure and is formed on a roll (W) and which is bounded by a blade element (3) at its outlet side end and by a barrier wall (6) at its inlet side end in the direction of running - in each case relative to the roll shell or the web. The invention is characterised in that the barrier wall is formed as a foil-type or strip-shaped barrier element (6), which is resilient in at least one zone, or as a resiliently held plate or strip, whose chord is arranged between the free end edge thereof and the clamping or support line thereof - at the support element against the internal pressure in the chamber - or, in the case of a straight extent thereof at the time, forming a narrow variable gap, which can also tend towards zero or be zero, towards the shell surface of the roll or towards the web, extending at an angle of between 70 DEG  and 105 DEG  relative to the latter. <IMAGE>
Patent FI-931391-A0 (FI)
Inventor: LUESSI ANDRE
IPC: A47J31/24
Filed: 1993-03-26
Abstract: A brewing unit has a brewing cylinder (1) with a cylindrical bore (2) and two plungers (3, 4). The brewing cylinder (1) and the plungers (3, 4) are arranged so as to be displaceable relative to one another. In a brewing position, the brewing cylinder (1) and the two plungers (3, 4) located inside the latter form a brewing chamber (5) in order to brew ground coffee located therein by adding pressurised water. The latter is fed to the brewing chamber (5) via a connection nipple (18) and via a through-bore which extends through the wall of the brewing cylinder (1) into a circular gap (14) formed between a sealing ring (11) and the end face (13) of the second plunger (4) facing the brewing chamber (5). The coffee is delivered via a filter (32), a pipe (34) and a further connection nipple (35). Due to the arrangement of the gap (14), the end side (13) of the second plunger (4) can be constructed without a filter. The feeding of pressurised water to the gap (14) causes a self-cleaning effect therein. Due to the construction of the end face (13) of the second plunger (4) without a filter, not only can a part subject to wear be eliminated, but a more cost-effective production of the brewing unit can also be implemented. <IMAGE>